>>212167231Northern Europeans have the thinnest hair? Where did you get that information?
>Caucasian hair has the highest density, with 226 hairs per square centimeter, making it the most abundant hair type. Asian and African hair have lower densities, with 175 hairs/cm2 and 161 hairs/cm2, respectively. Asian hair is the thickest, with a larger diameter of about 70 ยตm. Caucasian hair has an average diameter of 65 ยตm, and African hair is the finest, with a diameter of 55 ยตm. The cross-section of Asian hair is the most round and uniform, Caucasian hair has an elliptical shape, and African hair has a flattened shape. The maximum length of Asian hair ranges from 100 to 150 cm, while Caucasian hair can reach 60 to 100 cm, and African hair typically ranges from 15 to 20 cm.https://silkbiotic.com/en/blogs/science/structure-cheveux